#define _CRT_SECURE_NO_WARNINGS 1
#include <iostream>
using namespace std;
int arr[1010][1010];
int dp[1010][1010];
int main() {
    int n, m, q;
    cin >> n >> m >> q;
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= m; j++)
        {
            cin >> arr[i][j];
        }
    }
    for (int i = 1; i <= n; i++)
    {
        for (int j = 1; j <= m; j++)
        {
            dp[i][j] = arr[i][j] + dp[i][j - 1] + dp[i - 1][j] - dp[i - 1][j - 1];
        }
    }
    while (q--)
    {
        int x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        int ans = dp[x2][y2] - dp[x2][y1 - 1] - dp[x1 - 1][y2] + dp[x1 - 1][y1 - 1];
        cout << ans << endl;
    }
}